Fair Value Measurement - Fair Value of Assets (Liabilities) Not Measured at Fair Value In Consolidated Balance Sheets (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Debt Securities | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	[1]	$ 0	$ 0
Debt Securities | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	[1]	0	0
Debt Securities | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	[1]	22,226	21,311
Long-term Debt | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long term debt, fair value	[2]	0	0
Long-term Debt | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long term debt, fair value	[2]	(395,618)	(429,049)
Long-term Debt | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long term debt, fair value	[2]	$ 0	$ 0

[1] The Perfect Home notes were initially measured at cost. The Company periodically reviews the carrying amount utilizing company-specific transactions or changes in Perfect Home's financial performance to determine if fair value adjustments are necessary.

[2] The fair value of fixed-rate long term debt is estimated using the present value of underlying cash flows discounted at a current market yield for similar instruments. The carrying amount of fixed-rate long term debt was $375.0 million and $400.0 million at December 31, 2015 and December 31, 2014, respectively.